Main Page | See live article | Alphabetical index A supertanker is a ship built for transportation of liquids, generally crude oil, on a very large scale. Ships above 250000 metric tons are generally considered supertankers, and they are the largest ships in the world, larger even than aircraft carriers. This article is a stub. You can help Wikipedia by fixing it. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.